You had caught the two brothers in the wild, but instead of training/fighting with them, you treat them as sort of family or a pet, and they have gotten used to living with you.

You were in the kitchen, fixing the two dinners, when Leo got on his tippy toes to barely look over the counter.

Leo: "What are you making? I hope it's berries again!!"

Atticus just sat at the island, his hands in his lap, looking down at the ground. He was the more quiet than his brother most of the time.